---input---
import "transforms/yellow.jslt" as yellow

// Known valid types
let valid-types = [ "SomeType" ]

def foobar(arg) $arg.foobar

{
  "foobar": foobar(.),
  "is-valid": contains(.type, $valid-types),
  *: .
}

---tokens---
'import'      Keyword.Namespace
' '           Text.Whitespace
'"transforms/yellow.jslt"' Literal.String.Symbol
' '           Text.Whitespace
'as'          Keyword.Namespace
' '           Text.Whitespace
'yellow'      Name.Namespace
'\n\n'        Text.Whitespace

'// Known valid types\n' Comment.Single

'let'         Keyword.Declaration
' '           Text.Whitespace
'valid-types' Name.Variable
' '           Text.Whitespace
'='           Operator
' '           Text.Whitespace
'['           Punctuation
' '           Text.Whitespace
'"SomeType"'  Literal.String.Double
' '           Text.Whitespace
']'           Punctuation
'\n\n'        Text.Whitespace

'def'         Keyword.Declaration
' '           Text.Whitespace
'foobar'      Name.Function
'('           Punctuation
'arg'         Name.Variable
')'           Punctuation
' '           Text.Whitespace
'$arg'        Name.Variable
'.'           Operator
'foobar'      Name
'\n\n'        Text.Whitespace

'{'           Punctuation
'\n  '        Text.Whitespace
'"foobar"'    Literal.String.Double
':'           Punctuation
' '           Text.Whitespace
'foobar'      Name
'('           Punctuation
'.'           Operator
')'           Punctuation
','           Punctuation
'\n  '        Text.Whitespace
'"is-valid"'  Literal.String.Double
':'           Punctuation
' '           Text.Whitespace
'contains'    Name.Builtin
'('           Punctuation
'.'           Operator
'type'        Name
','           Punctuation
' '           Text.Whitespace
'$valid-types' Name.Variable
')'           Punctuation
','           Punctuation
'\n  '        Text.Whitespace
'*'           Operator
':'           Punctuation
' '           Text.Whitespace
'.'           Operator
'\n'          Text.Whitespace

'}'           Punctuation
'\n'          Text.Whitespace